Application Overview
NACHI bearings for Gearboxes & Speed Reducers
nachioem supplies NACHI bearings for Gearboxes & Speed Reducers through a global supply network, with model cross-reference and selection support for distributors, repair shops and end-user plants.
Industrial gearboxes, speed reducers and geared motors support input, intermediate and output shafts with a mix of ball and roller bearings. Gear meshing produces combined radial and axial loads, while oil-bath lubrication and long duty cycles test bearing fatigue life. Maintenance buyers need bearings that match the original load capacity and dimensions, so gears stay aligned and quiet.
- Use tapered roller bearings on helical and bevel gear shafts, where axial gear forces must be held and preload set precisely.
- Choose cylindrical roller bearings for high radial load positions, such as intermediate shafts, where the shaft must float axially with heat.
- Fit spherical roller bearings on heavy output shafts where housing deflection or misalignment is expected.
- Use open bearings when the bearing runs in the gearbox oil bath, and keep the clearance class consistent with the original design.
